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Antarctic krill ( Euphausia superba Dana ) eat salps
Polar Biology, 1996Feeding behaviour of Antarctic krill (Euphausia superba) on salps was observed in shipboard experiments during the 1994/1995Kaiyo Maru Antarctic Ocean research cruise. The feeding rate was more than 0.5 salp/krill per day. When offered ethanol extracts of four prey types, salps, phytoplankton, krill and polychaetes, krill preferred the salp extracts ...
So. Kawaguchi, Yuko Takahashi
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Characterization of proteinases from Antarctic krill (Euphausia superba)
Protein Expression and Purification, 2002Fractions of three trypsin-like proteinases, TL I, TL II, and TL III, a chymotrypsin-like proteinase, CL, two carboxypeptidase A enzymes, CPA I and CPA II and two carboxypeptidase B enzymes, CPB I and CPB II, from Antarctic krill (Euphausia superba) have been characterized with respect to purity by the means of capillary electrophoresis, CE, and matrix-
Johan, Sjödahl +3 more
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Chemical composition of dried eyeballs from Euphausia superba and Euphausia pacifica
Fisheries Science, 2007Dried krill eyeballs were obtained from Euphausia superba and Euphausia pacifica by using a patented industry method and their chemical compositions were examined. Crude protein content was 77.7% and 80.8% of the dry matter of E. superba and E. pacifica, respectively.
Bunji YOSHITOMI, Hideaki YAMAGUCHI
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Feeding of the Antarctic Krill Euphausia Superba
Journal of Crustacean Biology, 1984ABSTRACT Measurements of rates of feeding indicate that Euphausia superba can feed on particles ranging from nanophytoplankton to macrozooplankton; a typical animal of 120 mg dry weight processes about 450 ml water per h and ingests at a maximum about 10% of its body carbon per day.
Carl M. Boyd +2 more
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Peptide hydrolases of Antartic krill, Euphausia superba
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1985Abstract 1. 1. A survey has been made of the peptide hydrolase activities occurring in Antarctic krill, Euphausia superba. 2. 2. A major protein hydrolyzing activity in the pH range of 6–8, and a minor activity at pH 3–4, were detected. 3. 3. Temperature optima of approx.
Knut Kr. Osnes, Viggo Mohr
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Chitosans from Euphausia superba. 1: Solution properties
Carbohydrate Polymers, 1992Abstract A technological development of chitosan (copolymer of N -acetylglucosamine and glucosamine) is based on the knowledge of parameters such as composition. types of sequence, chain length and distribution. In addition to the sample source, these factors are related to preparation and purification methods.
Maria Terbojevich +4 more
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Condition indicators for Antarctic krill, Euphausia superba
2023Antarctic krill use a variety of strategies to cope with, and thrive in the highly variable Southern Ocean environment. Despite much detailed information on its basic biology produced so far, the linkages between krill populations and the environment are yet to be systematically investigated. There is a practical need to have standardised indicators to
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Aspects of Schooling in Euphausia Superba
Journal of Crustacean Biology, 1984ABSTRACT Divers observed schools of Euphausia superba off the South Shetland Islands and in Gerlache Strait near the Antarctic Peninsula. Euphausiids almost always occurred within the confines of dense schools swimming in one direction. Schools formed an infinite variety of shapes but usually were narrow in at least one dimension, so that individuals ...
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Collagenolytic serine proteinase from Euphausia superba dana (antarctic krill)
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 19911. A serine proteinase isolated from E. superba shows collagenolytic properties: it acts on collagens from Achilles tendon (type I and V) and reconstituted fibrils of calf skin collagen under conditions that do not denature the substrates. 2. At 25 degrees C and pH 7.5 the enzyme both splits the calf skin collagen in solution to the fragments TCA and ...
M, Turkiewicz, E, Galas, H, Kalinowska
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Histopathology of Antarctic krill, Euphausia superba, bearing black spots
Journal of Invertebrate Pathology, 2008Small black spots have been noticed on the cephalothorax of Antarctic krill, Euphausia superba, since January, 2001. To study the nature of the black spots, the krill were sampled in the winter of 2003, 2006, and 2007 in the South Georgia region, the Antarctic Ocean.
S, Miwa +4 more
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